#1A188B#1A188B

#1A188B is a dark, vivid blue. Relative luminance 0.027; OKLCH L 31.9% C 0.178 H 270.9°. Best body text is #FFFFFF at 13.57:1 contrast (WCAG AA passes).

Color values

HEX	#1A188B
RGB	rgb(26, 24, 139)
HSL	hsl(241, 71%, 32%)
HSV	hsv(241, 83%, 55%)
CMYK	cmyk(81.3%, 82.7%, 0%, 45.5%)
CIE-LAB	lab(18.96, 41.68, -61.65)
CIE-LCH	lch(18.96, 74.42, 304.06°)
OKLab	oklab(31.95% 0.0027 -0.1785)
OKLCH	oklch(31.95% 0.178 270.9)
XYZ	xyz(5.4113, 2.7363, 24.6641)
Luminance	0.0274 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A188B #898B18

analogous

#18508B #1A188B #53188B

triadic

#1A188B #8B1A18 #188B1A

tetradic

#1A188B #8B1850 #898B18 #188B53

square

#1A188B #8B1850 #898B18 #188B53

split-complementary

#1A188B #8B5318 #508B18

monochromatic

#060623 #100F57 #1A188B #2421BF #423FDE

Accessibility & contrast

On white

13.57

#1A188B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#1A188B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A188B

13.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A188B	#FFFFFF	#000000	##FFFFFF
##1A188B	1.00	13.57	1.55	13.57
#FFFFFF	13.57	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00348E

Deuteranopia (green-blind)

#002889

Tritanopia (blue-blind)

#003C52

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #1a188b;
/* rgb */ color: rgb(26, 24, 139);
/* oklch */ color: oklch(31.9% 0.178 270.9);

Tailwind

colors: {
  custom: {
    50: '#6e58ae',
    500: '#1a188b',
    950: '#000000',
  },
}

SCSS

$custom: #1a188b;
$custom-light: #6e58ae;
$custom-dark: #000000;

JSON

{
  "hex": "#1a188b",
  "rgb": {
    "r": 26,
    "g": 24,
    "b": 139
  },
  "hsl": {
    "h": 241.043,
    "s": 70.552,
    "l": 31.961
  },
  "oklch": {
    "l": 0.31949,
    "c": 0.17848,
    "h": 270.9
  },
  "luminance": 0.02737
}

Semantic roles & 50–950 ramp

primary

#1A188B

secondary

#BCBE40

accent

#ED3AEA

background

#F7F5FA

surface

#EDE9F5

border

#C8C5CF

text

#090310

muted

#7B787F

Preview Lab

Preview with #1A188B

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →